
package com.gzbsoft.sc.modules.sys.oauth2;
import com.gzbsoft.sc.modules.sys.entity.SysUser;
import com.gzbsoft.sc.modules.sys.entity.SysUserToken;
import com.gzbsoft.sc.modules.sys.service.ShiroService;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.springframework.stereotype.Component;

import java.util.Set;
/**
 * 认证
 *
 * @author Mark sunlightcs@gmail.com
 */
@Component
public class OAuth2Realm extends AuthorizingRealm {
    private final ShiroService shiroService;
    public OAuth2Realm(ShiroService shiroService) {
        this.shiroService = shiroService;
    }
    @Override
    public boolean supports(AuthenticationToken token) {
        return token instanceof OAuth2Token;
    }
    /**
     * 授权(验证权限时调用)
     */
    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        SysUser user = (SysUser) principals.getPrimaryPrincipal();
        Long userId = user.getId();
        //用户权限列表
        Set<String> permsSet = shiroService.getUserPermissions(userId);
        SimpleAuthorizationInfo info = new SimpleAuthorizationInfo();
        info.setStringPermissions(permsSet);
        return info;
    }
    /**
     * 认证(登录时调用)
     */
    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        String accessToken = (String) token.getPrincipal();
        //根据accessToken，查询用户信息
        SysUserToken tokenEntity = shiroService.queryByToken(accessToken);
        //token失效
        if (tokenEntity == null || tokenEntity.getExpireTime().getTime() < System.currentTimeMillis()) {
            throw new IncorrectCredentialsException("token失效，请重新登录");
        }
        //查询用户信息
        SysUser user = shiroService.queryUser(tokenEntity.getUser().getId());
        //账号锁定
        if (user.isDelFlag()) {
            throw new LockedAccountException("账号已被锁定,请联系管理员");
        }
        return new SimpleAuthenticationInfo(user, accessToken, getName());
    }
}
